Would the all wheel drive 2000 Bravada have vacuum lines as a Blazer? And behind the front bumper, by the bottom of the radiator, is some type of valve with vacuum lines. Any ideas to what it is?
Thanks,
RTJ49

 

Unsure of the vacuumn hose routing on a bravada, but I believe the valve you're referring to is your secondary air pump. Looks something like this:




EDIT: I believe there should be a vacuumn diagram on your fan shroud.

 

That's it ChevyRiders. Thanks!
RTJ49